Die-casting machine.



L. M. PABKHURST. DIE CASTING MACHINE. APPLIUATIO'H FILED 111N319, 1911.1,056,442. Patented Mar. 13, 1913.

2 SHEETS-SHEET l.

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WITNESSES.-

LVVENTOR. 72% M liaflnllfarlfbursl' 5 BY (INN I 3 ATTORNEY.

L. M. PARK'HURST.

DIE CASTING IKEOHINE.

urmouron 2mm mm: 19, 1911.

1,056,442, Patented Mar. 18,1913,

. I 2 SEBZTB-BMEET WITNESSES: ,1 JNVEATOR. 5 11a 152 M Pan 1102 51 10. 1former application by me, Serial No. 610,931,

3 UNI D srA Es PATENT OFFICE.

v LAYroN m. PAnxnnns r, or ANnEnsoN; mammal assronon iro INDIANA nmcAs'nNe DEVELOPMENT COMPANY, A conronArrIoN or INDIANA.

' nrn-cAs'rme'mAonmn Specification of Letters Patent. v

Original application filed February 15, 1911, Serial No. 610,931.

19, 1911. Serial No. 334 178.

Patented Mar. 18, 1913. Divided and this application filed June tainuseful Die-Casting Machine; and I do hereby declare thatthe following isa full, clear, and exact descriptionthereof, refer- ?ence being had tothe accompanying drawings. p v

This application is divided out of a filedFeb. 15, 1911, I

The object of. this invention is to provide j means for exhaustingair-from a die used in connection with a die-casting machine,'par.-ticularly when the die-casting is'caused by compressed air.

The nature of the invention will be understood from the accompanyingdrawings; and the following description and-claims.

In the drawings, Figure 1 is an end elevation of the upper part of adie-casting machine, the lower part being broken away.

Fig. 2 is a section on the line 22 of Fig. 1 through apart of thedevice.

Fig. 3 is a plan view of the machine with part of the upper portion cutaway on the line 3---3 of Fig. 1. Fig. 4 is a section on the line 4-4There is shown in'the drawings a frame 10 formed of two substantiallysimilar sides, :one of which appears in Fig. 1, andthe two sides appearin Fig. 3. Within said frame there is a tiltin'g or oscillatable casing11,

the same being tilted-by the handle 12. I A suitable melting pot 25. isprovided in the casing 11. Fuel is supplied to the casing 11 through thepipes 19 and 20. The melting pot is not shown herein, but it has anoutlet 53, see- Fig. 4, and uponlthat outlet :1 die is secured so as tooscillate with the. melting pot, and when in a downward position themolten metal passes .from the melting pot through the outlet 53 to thedie. Then the meltingpot and die are oscillated to the up -'j rightposition shown in Figs. 1, 3 and-4 and the article removed from the die.

-.The die is formed of two members an 6-1, the former having a recesswhich fits over the end of'the outlet-nozzle 53 from the melting pot,and it has a small inlet port 62.

fiervals in communication withthe interior of the die so that theatmosphere inthe die may pass out of the die chamber into thesurrounding air chamber 63 and out there from, and thus in nomannerretard the ready; and complete admission of the. molten meta.

The die is held in" placeby a bolt65 which extends loosely through thetop of the frame 66, said frame consisting of two vertical side portionsand across or connection portion at-the top. Said side portions, as

seen in FF ig. 5, extend u from the-casing 66, as shown in- Fig. 1. Theconstruction is the same at each side of the frame 66. Thisconstruct-ionis to enable the die member "to be clamped with a slightmovement of the lever 67. When the bar 16 is disengaged from the notches70, the screw 65 "can be lifted up entirely away from the die members.When the die'members are replaced, the screw 65 can drop down intoplace, the bar 68 turned under notches 70 and thena very slight movementof the lever 67 will complete the clamping. The screw bolt 65 is held inits upward position by a pivoted latch 72 on the frame 66 adapted whenmoved to slip in between the threads of the bolt 65 and hold it up outof the way of the die While the die is being arranged in place.

The upper member 61 of the die has con- "duits 163 leading from thechamber 63 to A head 165 an outlet 164 from said die. is placed inconnection with the member 61 and held in place by the screw 65, saidscrew clamping the parts 165, 61, 60 and 53 to gether. Thehead 165 has asuction chamber 166 in communication with the outlet 164 from the die..There is also a tubular' extension 167 connected with the l1ead165 andin communication with the chamber 166 therein. To said tubular extensionatubular arm 168 is pivoted, as seen in Fig'4,.-and to the tube 168,another tube 169 is pivoted, and said latter tube is pivotallyconnected'with a vertical tube175', which is secured tothe extension176screwing on the hub 126. of the melting pct 25 and in communicationwith the passageway 177 longitudinally through the hub, which, when thepot is inverted, is

in communication with the tubular projection 178 in the cap 179, whichis loosely mounted on the hub 1-26 of the melting pot, and downfrom theprojection 178 a suction pipe 180 extends to a suction pump, not shown.\Vith this mechanism when the pot is inverted and the metal enters thedie, the tubes 177 and 178 will. be in communication and the air will beexhausted from the die chamber so that the chamber will be entirelyfilled by the molten metal.

I claim as my invention:

1. A die casting machine including an oscillatory melting pot, a dieconstruction, a flexible conduit between the melting pot I and dieconstruction for exhausting vair from the latter, and means controlledby the oscillatory movement of the melting pot for controlling theexhaust of air from the die.

2. A die casting machine including an oscillatory melting pot with asuitable outlet nozzle having a hub extending from the side ofthemelting pot and having an air passage throu h it away from its-center, ahearing forsald hub provided with an exhaust "air passageway adapted toregister with the Dassage in said hubwhen the melting pot is fixed. mysignature in the tilted, a suitable die construction, and a flexiblconduit between said die construction and the passageway in the hub ofthe :inelting pot for exhausting the air from the 3. A die-castingmachine includin dies having a plurality of: gates with their adjacentsurfaces formed so as to provide an escaping air chamber incommunication with the main die chamber and one of said gates havingpassageways from said escaping air chamber, an air exhaust head, meansfor clamping said air exhaust head and die gates together said exhausthead being in communication with the passageway in said die gate, afixed air exhaust pipe, and a flexible conduitextending from said airexhaust head to said stationary exhaust P P i In witness whereof, I havehereunto afpresence of the witnesses herein named.

LAYTON M: PARKHURST.

Witnesses:

WM. DURBIN, BYRON JARVIS.

